Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Go back and make a different choice.

 

7
8
6
1
5
2
3
9
4
5
3
4
9
       
      6
    
       
      6
    
1
2
8
2
1
9
      3
    
       
8
       
   6
    
3
5
6
    
    
       
    
       
      9
       
    
      9
6
2
7
5
3
8
7
8
3
4
1
5
6
9
2
5
6
    
    
       
8
9
3
1
7
2
2
6
1
9
7
3
8
4
5
3
5
9
8
4
3
6
9
2
6
1
7
4
8
6
2
1
9
3
3
6
9

 

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